Use correct includes in benchtests

Currently the benchtests are run with internal GLIBC headers, which is incorrect.
Defining _ISOMAC in the makefile ensures the internal headers are bypassed.
Fix all tests which were relying on internal defines or includes.

	* benchtests/Makefile: Define _ISOMAC.
	* benchtests/bench-strcoll.c: Add missing sys/stat.h include.
	* benchtests/bench-string.h: Define inhibit_loop_to_libcall macro.
	* benchtests/bench-strstr.c: Define empty libc_hidden_builtin_def.
	* benchtests/bench-strtok.c (oldstrtok): Use rawmemchr.
	* benchtests/bench-timing.h: Define attribute_hidden.

1 files changed, 1 insertions, 1 deletions

diff --git a/benchtests/bench-strtok.c b/benchtests/bench-strtok.c
index d01c57669c..ba8c2dcc56 100644
--- a/benchtests/bench-strtok.c
+++ b/benchtests/bench-strtok.c
@@ -42,7 +42,7 @@ oldstrtok (char *s, const char *delim)
   s = strpbrk (token, delim);
   if (s == NULL)
     /* This token finishes the string.  */
-    olds = __rawmemchr (token, '\0');
+    olds = rawmemchr (token, '\0');
   else
     {
       /* Terminate the token and make OLDS point past it.  */